2(x+20)=x+31

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Solution for 2(x+20)=x+31 equation: 



2(x+20)=x+31

We move all terms to the left:

2(x+20)-(x+31)=0

We multiply parentheses

2x-(x+31)+40=0

We get rid of parentheses

2x-x-31+40=0

We add all the numbers together, and all the variables

x+9=0

We move all terms containing x to the left, all other terms to the right

x=-9

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